Leaf spot is one of the most common symptoms of pathological processes in protected soil. For agronomists and specialists working with ornamental crops, timely diagnosis of these manifestations is critically important, as the development of fungal and specific diseases directly affects the marketability and preservation of plants. Understanding the nature of disease pathogens—from Gynura and Hydrangea to Aphelandra—allows for minimizing losses at the stage of seedling production and maintaining potted crops.
This collection contains materials dedicated to integrated plant protection in greenhouse conditions. Readers will find information on the characteristics of pathogens that cause leaf spot and methods for their identification on various types of flower crops. The articles also cover issues of proper substrate preparation, seedling cultivation technologies, and the development of strategies to combat pathogen resistance to fungicides. Studying these materials will help build an effective phytosanitary control system and prevent the spread of diseases in closed-ground conditions.